Rule.



E. L. PROUT.

RULE.

APPLICATlON FILED JUNE 8.1915.

THE COLUMBIA PLANOGRAPH 120., WASHINGTON, n. c.

ERVIN L. PROUT, OF ALBION, ILLINOIS.

RULE.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed June 8, 1915. Serial No. 32,900.

T 0 all whom it may concern:

Be it known that I, ERvrN L. PRoUT, a citizen of the United States, residing at Albion, in the county of Edwards and State of Illinois, have invented a new and useful Rule; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved measuring rule adapted for use by different mechanics and the like, for instance, for use by printers for measuring type after being set up.

One of the objects of the invention is to provide a sectional rule of this character comprising simple, efiicient and practical features of construction, and one of the features of construction is the provision of sections of equal length having graduations upon their opposite faces. Another feature of construction is the provision of means for holding the sections in open or closed positions and different adjusted positions, and the provision of means for holding the adjacent ends of the sections together.

In practical fields the details of construction may necessitate alterations, falling forth, shown in the drawings and claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings as claimed.

In the drawings :Figure 1 is a view in perspective of the improved rule constructed in accordance with the invention. Fig. 2 is a perspective view showing the sections opened. Fig. 3 is a perspective view showing the sections opened, and displaying the sides of the sections opposite to the sides in Fig. 2. Fig. 4. is a sectional view longitudinally through portions of the sections of the rule on line 4- 1 of Fig. 1, showing the sections closed. Fig. 5 is a longitudinal sectional view through the joint of the sections on line 5-5 of Fig. 2 showing the sections opened. Fig. 6 illustrates collective views of the joined ends of the sections. Fig. 7 is a sectional view,'showing one of the sections at right angles to the other section. Fig. 8 is a sectional view on line 88 upon the other. The pivot pin Sis provided with a laterally extending beveled arm 4, which is permanently embedded in the face 5 of the section 2, so as to form a rib, which is designed to engage the groove 7 of the section 1 to hold the sections closed one upon the other, and also designed to engage the groove 8 of the section 1 to hold the sections opened and alined. Said rib is also designed to engage any one of the grooves 9 to hold the sections in adjusted positions between closed and open positions. The free edge portions of the ends of the sections have curved plates 11 and 12 secured thereto, either one of which may be designed to engage thetype (not shown) that may be set up for measuring the type. These plates are provided with inter-engaging tongue and groove 13 and 14 to hold the sections together when closed. Adjacent the free edge portion of the sections at their ends are apertures 15, so that the rule may be suspended from a nail on the wall or the like. The

faces 16 of the sections are provided with graduations 17 and 18, whereas the faces 19 of the sections are provided with graduations 20 and 21. i

The invention having been set forth, what is claimed as new and useful is A measuring rule comprising two graduated sections pivotally united, curved plates secured upon the end edges of the sections, one of the edges of one of said curved plates having a tongue, the other curved plate having a groove on one of its edges to receive the tongue when said sections are closed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

Eli-VIN L. PROUT.

\Vitnesses C. R. FRIEND, S. EUGENE QUINDRY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

